From Destiny 2 Wiki
|Tree||Code of the Commander|
|Description||Guard with Sentinel Shield to create a defensive wall. Allies who shoot through the wall have increased weapon damage and guarding allies makes the shield last longer.|
Banner Shield is a Sentinel Super Augmentation ability.
- Projectiles generated by allies that travel along the ground will pass through Banner Shield. (e.g. Burning Maul, Voidwall Grenade)